question

lorenzo-accaroli avatar image
lorenzo-accaroli asked

Best Quattro settings for lead acid floaded batteries

Hi everyone,

I'm going deeper in knowledge about the Victron systems. As I said in previous topics I have an UPS system composed by:

1. Quattro 48/10000/140 (only inverting) - HUB1 assistant - NO ESS (this is a problem I know)

2. two Charge Controller for separate solar panel string: Smartsolar MPPT 150/85 and Smartsolar MPPT 250/100

3. 48V floaded lead TAB batteries


I don't have internet connection so for now I cannot perform or check settings on my Quattro.

The charging voltage limit imposed in MPPTs are:

- ABS:59.6V

- FLOAT: 55.20V

- COMP: 60.2 V

- DELTA V FIRST CHARGE PHASE: 1.6V


Moreover, virtual load setting on MPPTs is "Batterylife".


The installer was pretty bad in explaining and giving me instructions, and before asking directly to him I want to have a better idea about the best settings.

What I'm asking you is if you can give me some info about the settings of my Quattro Inverter for my configuraztion, expecially regarding the Min and Max battery's voltage in order to have good battery power to the loads in evening after a sunny day... I know it is a "rookie" question and that those settings depends from a lot of different factors, but just to have an idea when I will finally link my system to the VRM.


Thanks so much for those who will try explain me!


Here some pictures of the system.20210115_181808[1].jpg20210115_181824[1].jpg20210115_181842[1].jpg20210115_182925[1].jpg

MultiPlus Quattro Inverter Charger
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1 Answer
lorenzo-accaroli avatar image
lorenzo-accaroli answered ·

I think that what I have to check is the DC low shutdown and restart on VRM, it is correct? And what about the virtual load "Battery life" on the MPPTs?

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